摘要
研究不同热处理方式(沸水浴1、1.5、2 min,蒸汽处理1、1.5、2 min)对柠檬中酶钝化程度以及主要品质的影响。结果表明,热处理时间越长,柠檬中过氧化物酶钝化效果越好,但对柠檬品质影响越大,色泽变化随着热处理时间的增加,也越明显,蒸汽处理会使还原糖、丙二醛、抗坏血酸以及酚类物质含量略微升高,而在沸水浴环境下,因物质水溶性会使其在热处理过程中溶于水中使得含量下降;经过热处理过后,挥发性香气成分变化明显,尤其是醇醛类、烯烃类,都有显著的升高。
The effects of different heat treating(water bathing 1,1. 5,2 min,steam treating 1,1. 5,2 min)on the enzyme deactivation and main quality of lemon were studied herein. The results showed that longer heat treatment time gave better peroxidase passivation effect in lemon,but could cause greater impact on lemon quality. With the increase of blanching time,and the color change was more obvious,the steam treatment slightly increased the contents of sugar,malondialdehyde,ascorbic acid and phenolic. While in the boiling water,their contents decreased due to their water solubility. After blanching,volatile aroma compounds increased significantly,especially aldehydes and olefins.
作者
于筱雨
李少华
吴奇霄
林洪斌
毕秀芳
车振明
邢亚阁
YU Xiao-yu;LI Shao-hua;WU Qi-xiao;LIN Hong-bin;BI Xiu-fang;CHE Zhen-ming;XING Ya-ge(School of Food Science and Biological Engineering, Xihua University, Chengdu 610039, China;School of Textile and Food, Sichuan University, Chengdu 610065, China)
出处
《食品与发酵工业》
CAS
CSCD
北大核心
2018年第4期124-130,共7页
Food and Fermentation Industries
基金
粮油工程与食品安全四川省高校重点实验室项目(szjj2016-024)
四川省科技计划项目(2016FZ0019)
关键词
柠檬
热处理
酶活
品质
lemon
heat treating
enzyme activity
quality